Finding the Fourth Proportional to 319,979.68, 479,941.44 and 294,923.68
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Solution
The fourth proportional to 319,979.68, 479,941.44 and 294,923.68 is: 442,359.64
Step by Step Solution
- Step 1: Write the proportion equation
319,979.68 : 479,941.44 = 294,923.68 : x - Step 2: Convert to fraction form
319,979.68/479,941.44 = 294,923.68/x - Step 3: Cross multiply
319,979.68x = 479,941.44 × 294,923.68 - Step 4: Simplify right side
319,979.68x = 141,546,095,669.30 - Step 5: Solve for x
x = 141,546,095,669.30/319,979.68 - Step 6: Final answer
x = 442,359.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.